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Copyright-evidence-operatorscanner-liz-ridolfoCopyright-regionUSCopyright-evidenceEvidence reported by scanner-liz-ridolfo for item ozonerid00rideuoft on March 15, 2007: no visible notice of copyright; stated date is 1920.Copyright-evidence-date20070315142615ScanningcenteruoftMediatypetextsIdentifier-accesshttp://www.archive.org/details/ozonerid00rideuoftIdentifierozonerid00rideuoftImagecount224Ppi500Lcamid319346Rcamid325993Camera1DsOperatorscanner-mark-turnbull@...Scannerias8Scandate20070315175419Identifier-arkark:/13960/t4kk96098Bookplateleaf0006Sponsordate20070331